Crankcase Valve Hose Pipe for BMW OEM 11127590163

Product Overview

Ordered against OEM 11127590163, this Crankcase Vent Hose replaces the original part in the crankcase ventilation circuit on BMW vehicles. The returns crankcase gases to the intake tract through the vent valve, so form and fit are not negotiable. The crankcase ventilation circuit gives this part a hard life: heat soak, vibration and pressure cycling. Typical end-of-life signs are cracked elbows and oil-softened walls, which reach the workshop as a whistle at idle, rough running and lean mixture fault codes. The part belongs to a cooling-system catalogue of more than 4000 types, which is the practical reason buyers consolidate a mixed pallet with us rather than splitting it across suppliers.

Key Benefits

• Tooling route for obsolete references — Where the reference is out of production, we develop the mould from the sample you supply rather than turning the enquiry away.
• Inspection before despatch — Parts are inspected before they leave, which for this family means checking the sealing faces and the connector geometry that decide whether it fits.
• Built for the duty of the crankcase ventilation circuit — The part returns crankcase gases to the intake tract through the vent valve, so the compound and the wall construction are matched to that circuit rather than to a generic hose spec.
• Aftermarket buyers, not one-off retail — Pricing and packing are set up for distributors and workshop chains buying by the carton, not for single-piece retail.

Application Scenarios

Scheduled cooling-system overhaul

The vehicle is in for a coolant leak and the workshop replaces the whole branch at once rather than chasing the next failure in a month. With 11127590163 on the list the rest of the crankcase ventilation circuit can be priced at the same time.

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. With 11127590163 on the list the rest of the crankcase ventilation circuit can be priced at the same time.

Counter stock for a busy platform

BMW volume in the region justifies holding the line on the shelf instead of ordering it in per job. This reference, 11127590163, is bought for exactly that situation on BMW vehicles.

Who It Is For

• Aftermarket distributors — stocking cooling-system lines for BMW across a regional network and needing a reference-accurate catalogue behind the shelf. 11127590163 earns its shelf space through repeat demand on BMW platforms.
• Workshop and fast-fit chains — replacing crankcase vent hoses on BMW daily and judging a supplier on whether the part fits first time. What they need from 11127590163 is that it fits the BMW on the ramp today.
• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. They order 11127590163 by the carton and reorder against the same number.

Problems It Solves

Split ordering

Sourcing one hose from one supplier and the matching flange from another doubles the freight and the paperwork for the same repair. That is why 11127590163 carries its full cross-reference set on this page.

Parts that are no longer produced

When the original reference is dropped, the repair still exists. Sample-based production and mould development keep the line alive. With 11127590163 the check is the elbow angles, the valve interface and the connector locks, and it happens before despatch.

Returns from wrong fitment

Every returned part costs the freight twice. Checking the elbow angles, the valve interface and the connector locks before despatch is cheaper than a credit note. For this crankcase vent hose the answer is the reference, 11127590163, on every document.

Technical Features

The part serves the crankcase ventilation circuit and returns crankcase gases to the intake tract through the vent valve. It is moulded in PA66 glass-filled nylon, chosen because glass-filled PA66 gives a rigid pipe that holds its shape against vibration and keeps clamp faces dimensionally stable at under-bonnet temperature.

Used where the part must hold a fixed geometry and carry bolted or clipped interfaces. PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM 11127590163 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the elbow angles, the valve interface and the connector locks before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens.

4. Fit with the original clamp style

   Reuse the clamp type the BMW platform was designed around, and fit any seal or O-ring supplied with 11127590163 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for oil-softened walls at working temperature before the vehicle leaves.